tests/Makefile: allow control over tags during check-acceptance

Although it is possible to run a specific test using the avocado
command-line, a user may want to use a specific tag while running the
``make check-acceptance`` during the development or debugging.

This allows using the AVOCADO_TAGS environment variable where the user
takes total control of which tests should run based on the tags defined.

This also makes the check-acceptance command flexible to restrict tests
based on tags while running on CI.

e.g.:

AVOCADO_TAGS="foo bar baz" make check-acceptance

Signed-off-by: Willian Rampazzo <willianr@redhat.com>
Tested-by: Wainer dos Santos Moschetta <wainersm@redhat.com>
Reviewed-by: Wainer dos Santos Moschetta <wainersm@redhat.com>
Reviewed-by: Thomas Huth <thuth@redhat.com>
Reviewed-by: Philippe Mathieu-Daudé <philmd@redhat.com>
Signed-off-by: Philippe Mathieu-Daudé <philmd@redhat.com>
Message-Id: <20210923161141.232208-2-willianr@redhat.com>

1 files changed, 14 insertions, 0 deletions

diff --git a/docs/devel/testing.rst b/docs/devel/testing.rst
index 4a0abbf23d..d1841e35d5 100644
--- a/docs/devel/testing.rst
+++ b/docs/devel/testing.rst
@@ -732,6 +732,20 @@ available.  On Debian and Ubuntu based systems, depending on the
 specific version, they may be on packages named ``python3-venv`` and
 ``python3-pip``.
 
+It is also possible to run tests based on tags using the
+``make check-acceptance`` command and the ``AVOCADO_TAGS`` environment
+variable:
+
+.. code::
+
+   make check-acceptance AVOCADO_TAGS=quick
+
+Note that tags separated with commas have an AND behavior, while tags
+separated by spaces have an OR behavior. For more information on Avocado
+tags, see:
+
+ https://avocado-framework.readthedocs.io/en/latest/guides/user/chapters/tags.html
+
 The scripts installed inside the virtual environment may be used
 without an "activation".  For instance, the Avocado test runner
 may be invoked by running: